linux-kernel - [PATCH v2 06/10] gpio: dwapb: Discard GPIO-to-IRQ mapping function

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Message-ID: <20200730135536.19747-7-Sergey.Semin@baikalelectronics.ru>
Date:   Thu, 30 Jul 2020 16:55:32 +0300
From:   Serge Semin <Sergey.Semin@...kalelectronics.ru>
To:     Hoan Tran <hoan@...amperecomputing.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Serge Semin <fancer.lancer@...il.com>
CC:     Serge Semin <Sergey.Semin@...kalelectronics.ru>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Alexey Malahov <Alexey.Malahov@...kalelectronics.ru>,
        Pavel Parkhomenko <Pavel.Parkhomenko@...kalelectronics.ru>,
        Rob Herring <robh+dt@...nel.org>, <linux-gpio@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v2 06/10] gpio: dwapb: Discard GPIO-to-IRQ mapping function

Since GPIOlib-based IRQ-chip interface is now utilized there is no need in
setting up a custom GPIO-to-IRQ mapping method. GPIO-lib defines the
standard mapping method - gpiochip_to_irq(), which will be used anyway no
matter whether the custom to_irq callback is specified or not.

Signed-off-by: Serge Semin <fancer.lancer@...il.com>

---

Changelog v2:
- This is a new patch detached from commit
  "gpio: dwapb: Convert driver to using the GPIO-lib-based IRQ-chip".
---
 drivers/gpio/gpio-dwapb.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/drivers/gpio/gpio-dwapb.c b/drivers/gpio/gpio-dwapb.c
index 327333fbc750..f7acc5abbf5c 100644
--- a/drivers/gpio/gpio-dwapb.c
+++ b/drivers/gpio/gpio-dwapb.c
@@ -150,14 +150,6 @@ static inline void dwapb_write(struct dwapb_gpio *gpio, unsigned int offset,
 	gc->write_reg(reg_base + gpio_reg_convert(gpio, offset), val);
 }
 
-static int dwapb_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
-{
-	struct dwapb_gpio_port *port = gpiochip_get_data(gc);
-	struct dwapb_gpio *gpio = port->gpio;
-
-	return irq_find_mapping(gpio->domain, offset);
-}
-
 static struct dwapb_gpio_port *dwapb_offs_to_port(struct dwapb_gpio *gpio, unsigned int offs)
 {
 	struct dwapb_gpio_port *port;
@@ -466,8 +458,6 @@ static void dwapb_configure_irqs(struct dwapb_gpio *gpio,
 	}
 
 	girq->chip = &port->irqchip;
-
-	port->gc.to_irq = dwapb_gpio_to_irq;
 }
 
 static int dwapb_gpio_add_port(struct dwapb_gpio *gpio,
-- 
2.27.0